[Hackrf-dev] how to set IF in GNU Radio for HackRF

Karl Koscher supersat at cs.washington.edu
Thu Nov 19 16:40:09 EST 2015


You are recording complex floats. The intermediate frequency is your
frequency of interest minus what the HackRF is tuned to. If your HackRF is
tuned to 1.575 GHz but you want to decode the GPS L1 signal, then your IF
is 420 kHz.

On Thu, Nov 19, 2015 at 1:36 PM, mourad ghafiri <mourad.ghafiri at gmail.com>
wrote:

> I attached the flow graph for the recording as well as a real time
> spectrum , I'm not sure what blocks to use or what parameters to set for
> this block in order to have the right streaming.
> thanks for showing interest to the question
>
> On Thu, Nov 19, 2015 at 9:16 PM, Karl Koscher <supersat at cs.washington.edu>
> wrote:
>
>> How are you recording the samples?
>>
>> On Thu, Nov 19, 2015 at 1:05 PM, mourad ghafiri <mourad.ghafiri at gmail.com
>> > wrote:
>>
>>> Hello;
>>>
>>> please any help to figure out what is the Intermediate Frequency used
>>> for HackRF in Gnuradio...
>>>
>>> I'm recording a streaming file for GPS and I don't know what is the
>>> appropriate type ( int; float...) and what is the appropriate IF to use in
>>> order to process that streaming in Matlab.
>>>
>>> Best Regards;
>>>
>>> _______________________________________________
>>> HackRF-dev mailing list
>>> HackRF-dev at greatscottgadgets.com
>>> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://pairlist9.pair.net/pipermail/hackrf-dev/attachments/20151119/177a5d40/attachment.html>


More information about the HackRF-dev mailing list